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Anion slow-cracking asphalt emulsifying agent and preparation method thereof

The technology of asphalt emulsifier and anion is applied in the field of anionic slow-cracking asphalt emulsifier and its preparation, which can solve the problems of unguaranteed quality of emulsified asphalt and CA mortar, poor fluidity and high cost, and achieves easy product quality assurance, The effect of simplifying the preparation process and low manufacturing cost

Inactive Publication Date: 2012-06-20
江苏金阳新材料科技有限公司
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  • Abstract
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Problems solved by technology

[0003] 1. The existing CA mortar asphalt emulsifier products (such as the CA mortar asphalt emulsifier for high-speed rail produced by the China Academy of Railway Sciences) usually exist independently for multiple individual emulsifiers, and the user needs to combine several individual emulsifiers when using them. It is not only inconvenient to use, but also prone to measurement errors, so that the quality of the prepared emulsified asphalt and CA mortar cannot be guaranteed.
[0004] 2. The manufacturing process of existing products is complicated and the cost is high
[0005] 3. The emulsified asphalt products prepared by using the existing asphalt emulsifiers have poor fluidity during construction under high-temperature weather conditions, and it is difficult to meet higher requirements for use

Method used

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  • Anion slow-cracking asphalt emulsifying agent and preparation method thereof
  • Anion slow-cracking asphalt emulsifying agent and preparation method thereof

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Embodiment Construction

[0010] An example of preparing the anionic slow-cracking asphalt emulsifier of the present invention is as follows: after taking 5 parts of fatty alcohol polyoxyethylene ether for heating and dissolving (temperature 55 ℃-60 ℃), add 1 part of water, the temperature is controlled at 55 ℃-60 ℃, slowly (Process 2 hours) After adding 2.5 parts of sodium lignosulfonate, add 1.5 parts of carboxylate anionic surfactant, and let it react for 2 hours at a constant temperature of 55°C-60°C to obtain a product with a pH value of 8-10.

[0011] The use method when preparing emulsified asphalt with the above-mentioned embodiment is: asphalt ≥ 60%; 3-4% of anionic slow-cracking asphalt emulsifier of the present invention, 0.05-0.1% of JY-WD2 anionic stabilizer (dissolved in cold water 1:300 before use) ); water was added to 100%; adjusted to PH11-12 with alkali; oil temperature 135 ℃-145 ℃; emulsion temperature 55 ℃-60 ℃. The above ingredient percentages are by weight. The detection indicat...

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Abstract

The present invention relates to an additive of a road asphalt material, and specifically to an anion slow-cracking asphalt emulsifying agent of an emulsified asphalt material for the high speed railway, and a preparation method thereof. The raw material components of the anion slow-cracking asphalt emulsifying agent comprise polyoxyethylene fatty alcohol ether, water, sodium ligninsulfonate with a quality content more than 95% and a carboxylate anion surfactant, wherein a weight ratio of the components is (4-5):(0.8-1.0):(2-2.5):(1-1.5). The anion slow-cracking asphalt emulsifying agent and the preparation method of the present invention have the following advantages: 1, the single emulsifying agent is adopted as a product form capable of direct use, and can be directly used by the user, such that the preparation processes of the cement asphalt mortar (CA mortar) and the emulsified asphalt are simplified, and the product quality is easy to ensure; 2, the preparation method has characteristics of simpleness, safety, environmental protection, and no pollution; 3, the prepared emulsified asphalt product provides better mobility compared to the existing products; 3, the product preparation cost of the present invention is lower than the cost of the existing asphalt emulsifying agent for the CA mortar.

Description

technical field [0001] The invention relates to an additive for road asphalt materials, in particular to an anionic slow-cracking asphalt emulsifier used for emulsified asphalt materials for high-speed railways and a preparation method thereof. Background technique [0002] The emulsified asphalt used in the cement emulsified asphalt mortar (CA mortar for short) used in the construction of high-speed railways has high performance requirements, requiring a long mixing time and high temperature resistance. The performance of the key material of the track structure directly affects the durability and safety of the track, and its preparation technology is one of the key technologies of this type of track structure. The slow cracking asphalt emulsifier currently used for high-speed railway CA mortar mainly has the following defects: [0003] 1. Existing CA mortar asphalt emulsifier products (such as CA mortar asphalt emulsifier for high-speed rail produced by China Academy of Ra...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08J3/03C04B26/26
Inventor 肖富荣
Owner 江苏金阳新材料科技有限公司
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